Luverne is a progressive city in Rock County, Minnesota, United States, along the Rock River. It is the county seat of Rock County. It is one of four towns profiled in the 2007 Ken Burns documentary The War. Rock County holds the distinction of being one of four counties in the state of Minnesota without a natural lake. Interstate 90 and U.S. Route 75 are two of the main routes in the city. Iowa borders to the south and South Dakota to the west. The regional center of Sioux Falls, South Dakota, is a convenient 30-minute drive on Interstate 90.